Gwen Jorgensen’s Specialized S-Works Amira SL4
- By Triathlete.com
- Published Jul 13, 2012
The mechanical Shimano Dura Ace 7900 rear derailleur takes care of the majority of shifting duties come race day.
Liz Hichens is the Web Producer of Triathlete.com. She is an Ironman and marathon finisher and fan of all endurance sports.